A bicycle maintenance session

An original notice containing five intentional errors.

All bicycles has to be labelled before the maintenance session begins on Saturday morning. Cyclist's should report to the courtyard gate before unloading their bicycles. Each person may leaves one bicycle at a repair stand for a basic safety check. Please describe any neccessary repairs to the mechanic at the desk. Tools must remain in the work area untill the session closes at noon. Any work requiring replacement parts will be recorded for a later appointment.

Proofread this notice. Identify the five errors and give the correct forms. You do not need to copy out the complete notice.